Patent · US Expired

Combustion chamber with two-stage combustion

US5687571A · kind A · utility

25Cited by

3References

7Claims

0Family size

Assignee

Asea Brown Boveri, S.A. · CH

Inventors

Rolf Althaus · Flawil, CH
Jakob Keller · Dottikon, CH

Key dates

Filing date	Feb 5, 1996
Grant date	Nov 18, 1997
Priority date	—
Expiry date	Feb 5, 2016

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23C2900/07002
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A combustion chamber with two-stage combustion has primary burners (110) of the premixing type of construction, in which the fuel injected via nozzles (117) is intensively mixed with the combustion air inside a premixing space (130) prior to ignition. The primary burners are of flame-stabilizing design, i.e. they are designed without a mechanical flame retention baffle. They are provided with tangential inflow of the combustion air into the premixing space (130). Arranged downstream of a precombustion chamber (61) are secondary burners (150) which are designed as premixing burners which do not operate by themselves.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.